Numerical analysis of fractional distillation characteristics for radioactive metallic waste

Akaoka, Katsuaki ; Maruyama, Yoichiro

The fractional distillation characteristics at between 0 $^{circ}$ C and 2500 $^{circ}$ C(the rate is 200 $^{circ}$ C/h) of radioactive metallic waste for JPDR which mainly consists of stainless steel were analyzed numerically. In the simulation, the vaporization rates of the components of JPDR waste were calculated by using the Langmuir's equation and Henry's law. As the results, it was calculated that $^{152,154}$ Eu, $^{14}$ C and $^{94}$ Nb can be removed by the fractional distillation. On the other hand, $^{54}$ Mn and $^{55}$ Fe can be reduced by cooling them for about 30 years. Therefore, by removing $^{59,63}$ Ni and $^{60}$ Co using laser separation method, it will be possible to reduce the radioactive metallic waste by less than one one-hundredth.

Language	:	Japanese
Report No.	:	JAERI-Research 2004-012
Pages	:	12 Pages
Publication Year/Month	:	2004/08
Patent information	:
PDF	:	JAERI-Research-2004-012.pdf:3.52MB
Paper URL	:	https://doi.org/10.11484/jaeri-research-2004-012
Keywords	:	Fractional Distillation; Atom; Isotope; Laser; Separation; Radioactive Metallic Waste; Vapor; JPDR
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Registration No. : S20040012
JAEA Abstracts No. : 320721

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